M2 Steel Ball Lock Pilot Punches - Round Tip, Light Duty, Me

Ball lock pilot punches like this round-tip variant are used to register dies and maintain repeatable alignment in light-duty inch tooling. In progressive stamping, they help locate strip-fed components so successive forming stations hit the correct position with each press cycle.

They are also well suited for automotive and industrial connector housings produced via die sets, where consistent start-of-stroke alignment reduces scrap from misfeeds and skewed features. The M2 steel base supports reliable dimensional stability, while the listed CRN coating improves wear resistance under repeated contact with bushings or mating die components.

For die alignment fixtures and setup tools, the ball-lock design provides secure location, and the round tip supports smooth engagement and consistent centering, helping technicians set up multi-cavity tooling faster.

• Round tip supports uniform alignment
• Light-duty locating for inch die tooling
• CRN coating for durable, repeatable performance

This punch is offered in M2 (and also PS4, per available material options). M2 is an alloy high-speed steel typically corresponding to the AISI M2 class, chosen for good wear resistance and toughness in tooling that sees frequent contact.

With a CRN (CrN) coating, the surface gains improved wear resistance, which helps maintain locating geometry during repeated press cycles. In general, coated HSS tools trade slightly higher surface stiffness for reduced friction and better abrasive wear behavior compared with uncoated steel.

• M2 + CRN: strong wear performance for light-duty locating applications
• PS4: alternative material option for matching supplier/house practices (select based on availability and performance targets)

Specific hardness and heat-treatment state (e.g., quenched & tempered, nitrided) are not provided in the available specifications, so final hardness verification should be taken from incoming inspection reports or coating documentation.

To select the correct ball lock pilot punch, match your die cavity/core or bushing interface to the shank diameter D and the coded length range provided. This product lists D (in) = 25 ~ 100, so choose the punch shank diameter that matches your pilot hole/bushing specification for the inch die tool.

Next, confirm the required point length and overall length code. The variable point length options include 200–500, 200–600, 200–700, and 225–700 (coded inch), with corresponding ranges for B & L such as 225–500, 225–600, 225–700, plus additional C ranges like 225–600 and 225–700. A fixed coded range is also listed: 250–700 for B & L.

• P (in) = 0.05 ~ 0.749: verify this dimension against your locating clearance and tolerance stack
• Use the coded length ranges to ensure the tip depth provides proper engagement without bottoming

Tolerance details are not included in the provided data; therefore, confirm fit/clearance requirements with your die drawing and bushing tolerances, especially for high-cycle alignment stability.